package btrace;

import java.util.Scanner;

/**
 * btrace 测试
 */
public class Calculator {
	public int add(int a, int b) {
		return a + b;
	}

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		Calculator roboot = new Calculator();
		while (scanner.hasNext()) {
			int a = scanner.nextInt();
			int b = scanner.nextInt();
			int c = roboot.add(a, b);
			System.out.println(c);
		}
	}
}
